CAMDEN, N.J. (WTXF) - Five families are without a home because of fire in Camden, New Jersey.

The cause of the fire remains under investigation.

Camden fire crews were called to the 900 block of Cedar Street just after 3 a.m. Thursday. The building was engulfed with flames and heavy smoke when they arrived. The fire quickly reached 2-alarms.

According to witnesses, a man was frantically banging on neighbors windows, yelling ‘Fire!’ in the hopes of rousing residents to get out of the burning building.

Fire crews were able to get the fire under control by 4:30 a.m.

According to officials, some residents were sent to an area hospital for smoke inhalation.

One Camden County Police officer and one Camden firefighter were treated at an area hospital and released.

The Red Cross was helping the displaced families.

LEAP Academy University School reports two school families were impacted by the fire. School officials are collecting donations. They are asking for blankets, coats and various size clothing, from size 3 months to an adult female medium. Anyone wishing to donate can drop items at 948 Cedar Street, Camden, New Jersey, or call 856-655-4810 to make arrangements for a drop-off.

A GoFundMe page has been set up by a Camden County police officer and Cooper EMS employees. Anyone wishing to help is encouraged to click on the link.

2nd Alarm fire overnight on Cedar St. 3 children, one CC Police Officer transported to the hospital for smoke inhalation. One FF was injured. @PFANJ_IAFF@CityofCamdenGov